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Article: Design and analysis of feedforward symbol timing estimators based on the conditional maximum likelihood principle

TitleDesign and analysis of feedforward symbol timing estimators based on the conditional maximum likelihood principle
Authors
KeywordsConditional Maximum Likelihood
Cramér-Rao Bound
Feedforward
Gmsk
Linear Modulations
Msk
Symbol Timing Estimation
Issue Date2005
Citation
Ieee Transactions On Signal Processing, 2005, v. 53 n. 5, p. 1908-1918 How to Cite?
AbstractThis paper presents a general feedforward symbol-timing estimation framework based on the conditional maximum likelihood principle. The proposed timing estimator presents reduced implementation complexity and is obtained by performing an approximation on the Fourier series expansion of the conditional maximum likelihood function. The proposed algorithm is applied to linear modulations and two commonly used continuous phase modulations: minimum shift keying (MSK) and Gaussian MSK (GMSK). For the linear modulations, it is shown both analytically and via simulations that the performance of the proposed estimator is very close to the conditional CRB and modified CRB for signal-to-noise ratios (SNRs) in the range SNR ≤ 30 dB. Furthermore, the proposed estimator is shown to be asymptotically equivalent to the classic square-law nonlinearity estimator under certain conditions. In the case of MSK and GMSK modulations, although the proposed algorithm reaches the conditional CRB at certain SNRs, however, the conditional CRB is quite far away from the modified CRB, and there exists an alternative algorithm whose performance comes closer to the modified CRB. Therefore, the proposed estimator is more suitable for linear modulations than for MSK and GMSK modulations. © 2005 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/155267
ISSN
2015 Impact Factor: 2.624
2015 SCImago Journal Rankings: 2.004
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWu, YCen_US
dc.contributor.authorSerpedin, Een_US
dc.date.accessioned2012-08-08T08:32:36Z-
dc.date.available2012-08-08T08:32:36Z-
dc.date.issued2005en_US
dc.identifier.citationIeee Transactions On Signal Processing, 2005, v. 53 n. 5, p. 1908-1918en_US
dc.identifier.issn1053-587Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/155267-
dc.description.abstractThis paper presents a general feedforward symbol-timing estimation framework based on the conditional maximum likelihood principle. The proposed timing estimator presents reduced implementation complexity and is obtained by performing an approximation on the Fourier series expansion of the conditional maximum likelihood function. The proposed algorithm is applied to linear modulations and two commonly used continuous phase modulations: minimum shift keying (MSK) and Gaussian MSK (GMSK). For the linear modulations, it is shown both analytically and via simulations that the performance of the proposed estimator is very close to the conditional CRB and modified CRB for signal-to-noise ratios (SNRs) in the range SNR ≤ 30 dB. Furthermore, the proposed estimator is shown to be asymptotically equivalent to the classic square-law nonlinearity estimator under certain conditions. In the case of MSK and GMSK modulations, although the proposed algorithm reaches the conditional CRB at certain SNRs, however, the conditional CRB is quite far away from the modified CRB, and there exists an alternative algorithm whose performance comes closer to the modified CRB. Therefore, the proposed estimator is more suitable for linear modulations than for MSK and GMSK modulations. © 2005 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Signal Processingen_US
dc.subjectConditional Maximum Likelihooden_US
dc.subjectCramér-Rao Bounden_US
dc.subjectFeedforwarden_US
dc.subjectGmsken_US
dc.subjectLinear Modulationsen_US
dc.subjectMsken_US
dc.subjectSymbol Timing Estimationen_US
dc.titleDesign and analysis of feedforward symbol timing estimators based on the conditional maximum likelihood principleen_US
dc.typeArticleen_US
dc.identifier.emailWu, YC:ycwu@eee.hku.hken_US
dc.identifier.authorityWu, YC=rp00195en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/TSP.2005.845486en_US
dc.identifier.scopuseid_2-s2.0-18844384972en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-18844384972&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume53en_US
dc.identifier.issue5en_US
dc.identifier.spage1908en_US
dc.identifier.epage1918en_US
dc.identifier.isiWOS:000228403500026-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWu, YC=7406894786en_US
dc.identifier.scopusauthoridSerpedin, E=7003366947en_US

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